@BarryFromMars It probably has more to do with the bulbs than the Lamp Ponies themselves, unless we're talking about neon lights which prefer their food in aerosol form.
Different bulbs for different flavours. A fresh bowl of capsule light bulbs would be like a salad to them, while anything with mercury in it would be extremely spicy. Traditional bulbs for a more earthy taste, globe for sweeter, candle for cooked foods and spiral bulbs to make the Lamp Pony feel the unending power of the universe.
@BarryFromMars One of the benefits of object ponies is they have both object and pony traits. Her filament is metal and electric just like a light bulb, but it also works like a muscle in a living body that will heal and recover after being stressed too far. If she burns out, she just needs to rest for a day or so for it to heal and recover :D
The same if she gets a crack in her porcelain body: put a bandaid over it and it will heal in time :D
Alright Badum, riddle me this: does she need her light bulbs changed and is the light bulb her head or is the bulb something else inside her head? Do you need to take her "skullcap" off to get at the light bulb or is it some other kind of magical light? Come on, we need to know how to take care of our lamp pones!